LTC2901-3IGN#PBF

Supervisors Overview

The LTC2901-3IGN#PBF is a programmable quad supply monitor manufactured by Analog Devices Inc. housed in a 16-pin SSOP package. It features adjustable reset and watchdog timers for systems with up to four power supplies. The device utilizes an external resistor divider connected to the SET pin to select from sixteen preset or adjustable voltage monitoring combinations. It provides open-drain reset outputs and supports I2C-compatible configuration.

Supervisors Feature Summary

• Programmable quad supply monitoring capability
• Adjustable reset and watchdog timer functions
• Configurable via external resistor divider network

Supervisors Applications

• Multi-rail power supply supervision
• Processor supervisor circuits
• Automotive electronic control units

Supervisors Procurement Notes

Verify the specific suffix #PBF indicates lead-free compliance and tube packaging. Confirm the -3 variant corresponds to the correct voltage thresholds required for the target application. Ensure the SSOP-16 footprint matches the design layout. Cross-reference the datasheet revision date to ensure compatibility with current manufacturing standards.

Supervisors Selection Notes

Select this component when independent monitoring of four distinct voltage rails is required. The external resistor divider allows customization of trip points without internal programming overhead. Consider the open-drain output structure for level shifting needs. Evaluate the watchdog timer requirements against system safety standards before finalizing the design.

Supervisors Part Context

This part belongs to the LTC2901 family of supervisory circuits designed for complex embedded systems. It serves as a critical reliability component by detecting under-voltage conditions across multiple power domains. The SSOP-16 package offers a compact solution for space-constrained printed circuit board designs requiring robust power management supervision.

Supervisors Replacement Considerations

LTC2901-2IGN#PBF and LTC2901-4IGN#PBF are confirmed substitutes within the same family offering different preset voltage configurations.